Nehalem Chipsets
The Nehalem architecture, which is the basis of the Core i7 brand and projected additional brands, moves the memory controller onto the processor. For high-end Nehalem processors, the X58 IOH acts as a bridge from the QPI to PCI-Express peripherals and DMI to the ICH10 southbridge. For low-end Nehalems, the integrated memory controller (IMC) is an entire northbridge (some even having GPUs), and the PCH acts as a southbridge. There is currently no ECC support.
| Chipset | Code Name | Part numbers | South Bridge | Release Date | Processors | Process support | Bus Interface | Graphics |
|---|---|---|---|---|---|---|---|---|
| X58 | Tylersburg | 82X58 (IOH) | ICH10 / ICH10R | Nov 2008 | Core i7, Beckton, Gainestown | 45nm, 32nm | QPI 6.4 GT/s, 4.8 GT/s |
|
| P57 | Ibex Peak | Unknown (PCH) | Integrated | Q1, 2010 | Lynnfield, Havendale | 45nm | DMI x4/x2 |
|
| P55 | Ibex Peak | Unknown (PCH) | Integrated | Q3, 2009 | Lynnfield, Havendale | 45nm | DMI x4/x2 |
|
| H57 | Ibex Peak | Unknown (PCH) | Integrated | Q1, 2010 | Lynnfield, Havendale | 45nm | DMI x4/x2 |
|
| H55 | Ibex Peak | Unknown (PCH) | Integrated | Q1, 2010 | Lynnfield, Havendale | 45nm | DMI x4/x2 |
|
| Q57 | Ibex Peak | Unknown (PCH) | Integrated | Q1, 2010 | Lynnfield, Havendale | 45nm | DMI x4/x2 |
|
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